CFLAGS += -std=c++11 -O2 -Wall -Wextra -Wfatal-errors
#CFLAGS += -std=c++11 -g -O0 -Wall -Wextra -Wfatal-errors

CFLAGS += -DUSE_RTLSIM -fPIC -Wno-maybe-uninitialized
CFLAGS += -I../../include -I../../../hw/simulate -I../../../hw

# control RTL debug print states
DBG_PRINT_FLAGS += -DDBG_PRINT_PIPELINE  
DBG_PRINT_FLAGS += -DDBG_PRINT_CORE_ICACHE
DBG_PRINT_FLAGS += -DDBG_PRINT_CORE_DCACHE
DBG_PRINT_FLAGS += -DDBG_PRINT_CACHE_BANK 
DBG_PRINT_FLAGS += -DDBG_PRINT_CACHE_MSHR
DBG_PRINT_FLAGS += -DDBG_PRINT_CACHE_TAG
DBG_PRINT_FLAGS += -DDBG_PRINT_CACHE_DATA
DBG_PRINT_FLAGS += -DDBG_PRINT_MEM
DBG_PRINT_FLAGS += -DDBG_PRINT_OPAE
DBG_PRINT_FLAGS += -DDBG_PRINT_AVS
DBG_PRINT_FLAGS += -DDBG_PRINT_SCOPE

DBG_FLAGS += $(DBG_PRINT_FLAGS)
DBG_FLAGS += -DDBG_CACHE_REQ_INFO

CONFIGS ?= -DNUM_CLUSTERS=1 -DNUM_CORES=1

CFLAGS += $(CONFIGS)
CFLAGS += -DDUMP_PERF_STATS

LDFLAGS += -shared -pthread
#LDFLAGS += -dynamiclib -pthread

ifdef AXI_BUS
	TOP = Vortex_axi
	CFLAGS += -DAXI_BUS
else
	TOP = Vortex
endif

RTL_DIR = ../../hw/rtl
DPI_DIR = ../../hw/dpi

SRCS = vortex.cpp ../common/vx_utils.cpp ../../hw/simulate/simulator.cpp
SRCS += $(DPI_DIR)/util_dpi.cpp $(DPI_DIR)/float_dpi.cpp

FPU_INCLUDE = -I$(RTL_DIR)/fp_cores -I$(RTL_DIR)/fp_cores/fpnew/src/common_cells/include -I$(RTL_DIR)/fp_cores/fpnew/src/common_cells/src -I$(RTL_DIR)/fp_cores/fpnew/src/fpu_div_sqrt_mvp/hdl -I$(RTL_DIR)/fp_cores/fpnew/src 
RTL_INCLUDE = -I$(RTL_DIR) -I$(DPI_DIR) -I$(RTL_DIR)/libs -I$(RTL_DIR)/interfaces -I$(RTL_DIR)/cache $(FPU_INCLUDE)

VL_FLAGS += -O2 --language 1800-2009 --assert -Wall -Wpedantic
VL_FLAGS += -Wno-DECLFILENAME -Wno-REDEFMACRO
VL_FLAGS += --x-initial unique --x-assign unique
VL_FLAGS += verilator.vlt
VL_FLAGS += $(CONFIGS)

# Enable Verilator multithreaded simulation
#THREADS ?= $(shell python3 -c 'import multiprocessing as mp; print(max(1, mp.cpu_count() // 2))')
#VL_FLAGS += --threads $(THREADS)

# Debugigng
ifdef DEBUG
	VL_FLAGS += -DVCD_OUTPUT --trace --trace-structs $(DBG_FLAGS)
	CFLAGS   += -DVCD_OUTPUT $(DBG_FLAGS)
else    
	VL_FLAGS += -DNDEBUG
	CFLAGS   += -DNDEBUG
endif

# Enable perf counters
ifdef PERF
	VL_FLAGS += -DPERF_ENABLE
	CFLAGS += -DPERF_ENABLE
endif

# ALU backend
VL_FLAGS += -DIMUL_DPI
VL_FLAGS += -DIDIV_DPI

# FPU backend
FPU_CORE ?= FPU_DPI
VL_FLAGS += -D$(FPU_CORE)

PROJECT = libvortex.so
# PROJECT = libvortex.dylib

all: $(PROJECT)
	
$(PROJECT): $(SRCS)
	verilator --exe --cc $(TOP) --top-module $(TOP) $(RTL_INCLUDE) $(VL_FLAGS) $(SRCS) -CFLAGS '$(CFLAGS)' -LDFLAGS '$(LDFLAGS)' -o ../$(PROJECT)
	make -j -C obj_dir -f V$(TOP).mk

clean:
	rm -rf $(PROJECT) obj_dir
